Service Manual
Model No.:
9-2. M
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in bo
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ilure
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k
No picture but have sound
Check if the backlight of
panel is working
Yes
Check if there is +12V at
Pin1~Pin8 in CN22
Yes
Change VB1 wire
No
No
Replace the
QD8 QD9
check if J16 Pin3(3.3V)
Pin2(>0.7V) is normal
Yes
Change the Power
board
Change the
Mainboard
Still having
problems
Change Panel
- 1 -
No
